Valve



Aug 14, R923. 11A64h837 O. R. WIKANDER VALVE Filed Nov. 1920 2Sheets-Sheet 3 ATTORNEYS Aug. 14, 11923. 3 464837 O. R. WIKANDIER VALVEFiled Nov. 6, 1920 2 Sheets-Sheet 3 rattan arena @FFHCE.

OSCAR R. WIKANDER, OF GLEN RIDGE, NEW JERSEY, ASSIGNOR T WORTHINGTONPUMP AND MACHINERY CORPORATION, OF NEW YORK, N. Y., A CORPORATION OFVIRGINIA.

VALVE.

Application filed November 6, 1920. Serial No. 4=22,211.

To all whom it may concern.

Be it known that I, OSCAR R. VIKANDELR,

a citizen of the United States, residing at Glen Ridge, county of Essex,and State of NewJersey, have invented certain new and usefulImprovements in Valves, fully described and represented in the followingspecification and the accompanying drawings, forming a part of the same.

This invention relates to improvements in valves for use in aircompressors and similar machinery, which is simple and effective inconstruction, which is sensitive in operation, which permits the initialopening movement to take place quickly, so that the valve opens rapidly,and which effectually cushions the valve at the end of its openingmovement, thereby preventing shock and securing the desired action andlong life at high speeds.

With these and other objects not specifically referred to in view, theinvention consists in certain constructions, parts, improvements andcombinations as will be herein after fully described and thenspecifically pointed out.

. Referring to the drawings which illustrate concrete embodiments of theinvention Figure 1 is a side elevation, partly in section. of aconstruction embodying the invention.

Figure 2 is a sectional line 2-2 of Fig. 1.

Figure 3 is a side elevation of a modified iprm' of constructionembodying the invenion.

Figure 4 is a side elevation of another modified form of construction.

Figure 5 is a vertical section ofthe construction shown in Fig. 4.

- Figures 6 and 7 are sectional lan views of the construction shown inig. 4, the planes of section being indicated by the lines 5 6-6 and 7-7of Fig. 4, respectively.

Referring to the drawings, and particularly to Fig. 1, l indicates thevalves seat which, as shown. has annularly disposed ports therein, and 2indicates an annular valve 50 cooperating with said ports. An abutmentconsisting of plate '3 is provided, this plate being secured by a nut 4.or in any other suitable manner. to a central guide 5 which lies withinthe annulus of the vlave. Con- 5 struction embodying the invention willinplan view on the clude a pair of plates arranged to form a bow springthat is, a curved plate with a second plate extending across theconcavethat both plates have a central opening and are disposed aboutthe central guide 5. In the construction shown in Fig. 3, the corrugatedplate 6 is the lower plate and the uncorrugated curved plate 7 bearsagainstthe abutment. Both these constructions are sensitive and allow aneasy and rapid start ing movement of the valve. In both constructions,the resisting effect of the spring increases rapidly as the valve opens,so that, at the end of the stroke, the springs are strongly compressedand the valve is effectively cushioned.

In the construction shown in Figs. 4, 5 and 6, a spring which issupplemental to the how spring is employed, this construction beingparticularly adapted for large valves and valves which comprise apluralityot annular plates arranged one within the other. In thisconstruction shown in these figures, the valve seat is provided with aplurality of ports 8, 9, and the valve consists of a plurality ofannular plates 10, 11. The inner plate 11 is disposed around the centralguide 5 and is guided in its movement thereby. Additional guides, as 12,may be employed to guide the outer plate in its movement. The controlsprings include the plates 6 and 7 forming the bow spring beforedescribed, but a supplemental spring construction is employed inconnection therewith. While the construction of this supplemental springmay be varied, as shown it comprises curved or bowed plates 13, 14between which is arranged an intermediate plate 15. In the constructionshown, the plates are curved upwardly and have openings through whichthe annular guide passes. The plates 6, 7 are also provided withopenings through which the guides 12 pass, these openings being largeenough to permit the necessary movements of the spring plates as thevalve opens and closes.

The invention may be embodied in constructions other than thoseillustrated. The invention is not, therefore, to be restricted to theparticular constructions shown.

' What is claimed is: v V

1. The combination with an annular plate valve and an abutment, of apair of spring plates for controlling the movement of the valveinterposed between the valve and the abutment, said plates beingarranged to form a single bow spring, and one of said plates beingcorrugated or waved.

2. The combination with an annular plate valve and-an. abutment, of apair of spring plates for controlling the movement of the valveinterposed between the valve and the,

abutment, said plates being arranged ,to form a single .bow spring, andone of said plates being formed with parallel corrugations. 1

3. The combination with an annular plate valve and an abutment, of apair of spring plates for controlling the movement of the valveinterposed between the valve and the abutment, said plates beingarranged to form a single bow spring, the plate which is next theabutment being formed with parallel corrugations. I

4. The combination with a plate valve comprising a plurality of annularplates, of

, an abutment, a central guide lying within the annulus of the innerplate, a pair of spring plates interposed between the valve and theabutment, said plates being arranged to form a bow spring, and asupplemental spring arranged within the bow spring.

5. The combination with a platev valve comprising a plurality of annularplates, of

an abutment, a central guide lying within the annulus of the innerplate, a pair of spring'plates interposed between the valve and theabutment, said plates being arranged to form a bow spring, and asupplemental spring ineluding a plurality of curved. plates arrangedwithin the bow spring.

6. The combination with a valve, of an abutment, a pair of spring platesinterposed plates being arranged to form a bow spring.

and the plate lying next the abutment being corrugated or waved, and asupplemental spring arranged within the bow spring.

9. The combination with a plate valve, said valve comprising a pluralityof annular plates, of an'abutment, a central guide lying within theannulus of the inner plate, a air of spring plates arranged to form a 0wspring interposed between the valve and the abutment, one of said platesbeing corrugated or waved, and a supplemental spring including aplurality of curved 'platesarranged within the bow spring.

10. The combination with a plate valve comprising a plurality of annularplates, of an abutment, a central guide'lying within the annulus of theinner plate, guides for the outer plate, a pair of spring plates in-'.

terposed between the valve and the abutment, said plates being arrangedto form a bow spring, and one of said plates being waved or corrugated,and a supplemental spring arranged within the bow spring, saidsupplemental spring comprising a plurality of curved spring plates andan intermediate plate.

In testimony whereof, I have hereunto set my hand.

OSCAR R. WIKANDER,

